Vacuum handpiece



FIG. 1 is a perspective view of a vacuum handpiece showing the design;

FIG. 2 is a left side elevation view thereof, the right side being a mirror image thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a rear elevation view of the design; and,

FIG. 6 is a front elevation view thereof.

Broken lines shown in the drawings are for illustrative purposes only and do not form part of the claimed design. 

The ornamental design for a vacuum handpiece, as shown and described. 